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Finding the Fourth Proportional to 105,348.20, 158,108.70 and 101,892.20

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Solution

The fourth proportional to 105,348.20, 158,108.70 and 101,892.20 is: 152,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,348.20 : 158,108.70 = 101,892.20 : x
  2. Step 2: Convert to fraction form
    105,348.20/158,108.70 = 101,892.20/x
  3. Step 3: Cross multiply
    105,348.20x = 158,108.70 × 101,892.20
  4. Step 4: Simplify right side
    105,348.20x = 16,110,043,282.14
  5. Step 5: Solve for x
    x = 16,110,043,282.14/105,348.20
  6. Step 6: Final answer
    x = 152,921.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.